150 for James Whartonpublished at 11:52 British Summer Time 1 July

11:52 BST 1 July

Derbys 76 v Yorks 340-5

Image source, Rex Features

This is turning into some knock from James Wharton.

Having brought up his maiden first-class century yesterday, the Yorkshire number three moves to 150 off 180 balls.

Wharton has clattered 20 fours and four sixes at Queen's Park.

Two more and he will have doubled Derbyshire's entire first innings total.

Trevor Owens
BBC Hereford & Worcester

There will be an early lunch at 12:30 at Chester-le-Street with a view to play then starting at 13:10 - assuming there is no further rain.

Essex have confirmed that Jordan Cox will play no further part in the match against Surrey after surgery on his appendix overnight.

The club say their leading red-ball run scorer this season is likely to need a two-week recovery period.

Frustratingly for Essex, no replacement is allowed for the rest of the clash at The Oval.

Elgar struck on the arm by Jordan Clarkpublished at 11:44 British Summer Time 1 July

11:44 BST 1 July

Surrey 262 v Essex 12-0

Dean Elgar has one hand off the bat defending his wicket against Jordan Clark as he deflects the ball just short of the keeper.

That struck the arm and he has peeled off his glove and backed away to square leg.

That ball got up a bit on a length. Painful.

The physio is coming on with the magic spray.

That might have hit him on the elbow.

James Vince made 166 last week, he has 175 and counting this week.

He is expending the absolute minimum of effort. He stands in his crease and swats Charlie Stobo's latest offering to the deep cover boundary for his 26th four.

Three balls later that becomes 27 and number 28 comes up from the fifth delivery. All through the covers. All without needing to move his feet. Not even a step offered towards a run.

He is in the zone and going through the gears.

More runs for Nick Browne, flicking Dan Worrall fine past a diving keeper for four.

There is a leg slip in place for Dan Worrall but the position is too wide to stop that shot.

Dan Worrall is getting the ball to nip back sharply off the pitch and swing away as Browne defends carefully down the ground.

Jordan Clark will bowl from the Pavilion End.

Three slips in for Dean Elgar, who is squared up with a play and edge outside off by the second ball.

The ball drops in front of third slip.

Elgar tries to push into the off side but the ball is picked up on the ground at point.

Maiden over.

We were hoping the players would be on the field by now, but sadly another sharp shower has swung in from the Irish Sea and the 11.30 BST start has been delayed again.

The players were warming-up on the field when the heavens opened.

Cruel.

Further updates when we have them...

50 for Jonathan Tattersallpublished at 11:33 British Summer Time 1 July

11:33 BST 1 July

Derbys 76 v Yorks 315-5

Image source, Rex Features

Yorkshire continue to dominate as they pass 300 and Jonathan Tattersall brings up his 15th first-class half-century as he takes a couple off Zak Chappell.

It's come off 87 balls, with six fours, and the partnership with James Wharton reaches 150.

It's looking ominous for Derbyshire to put it mildly.

Nick Browne is off the mark fourth ball, clipping a length delivery behind square leg for four runs.

Superb timing.

Four more driven through the off side, but Dan Worrall comes back strongly, beating the forward defensive just outside off stump.

Here comes Dean Elgar and Nick Browne.

The well worn phrase "crucial passage of play" is particularly apt here as Surrey fall a bit below a par score on this pitch.

But that computation could change in the blink of an eye if the hosts strike early this morning.

Nick Browne takes first strike, facing Dan Worrall, bowling from the Vauxhall End.

Trevor Owens
BBC Hereford & Worcester

Image source, Trevor Owens - BBC Sport

There is a delayed start at Chester-le-Street and the forecast is for heavy showers throughout the day.

23 wickets fell on day one with Durham due to resume their second innings on 33-3 - that's an overall lead of 111 runs.

Yesterday's clatter of wickets was a record for day one of a County Championship match at Chester-le-Street.

If they do get on, Worcestershire will be keen to get among them early as they won't want to be chasing much above 200 in the fourth innings.

Image source, Rex Features

Shane Snater beats Tom Lawes with another superb delivery that misses the top of the stumps by a whisker.

Gone this time!

Superb catch from Simon Harmer above head height as Lawes goes for a lofted drive outside off and edges high to second slip.

Shane Snater wraps it up for the visiting team and ends up with 3-56 as Surrey fall a tad below par.

Grant Stewart gets one to nip back at Ben Brown, thudding him above the knee roll, but despite a full-blooded appeal the finger stays down. Possibly outside the line.

Charlie Stobo then beats the edge of James Vince's blade with another decent delivery.

Kent are just not getting the breaks they need if they are to break this monstrous stand.

Dan Worrall is right behind the line of the last ball of the over and he'll pick up a single first ball.

Jamie Porter continues from the Vauxhall End.

Worrall drives the second ball for a single.

Tom Lawes nudges the third ball leg side for one more.

Porter bangs one in short and looks quizzically at the umpire on being no-balled for height. Looked marginal at around head height.

Four runs in that over.

Martin Emmerson
BBC Radio Newcastle

The covers are on and it's very chilly.

It's the start of July but it feels like November out there.

At the moment it's a waiting game.

The ground staff have all the big covers on and they've protected the bowlers run-ups as well.